Traffic Volume Trends - June 2005

Based on preliminary reports from the State Highway Agencies, travel during June 2005 on all roads and streets in the nation changed by 1.6 percent resulting in estimated travel for the month at 257.6** billion vehicle-miles.

This total includes 98.4 billion vehicle-miles on rural roads and 159.2 billion vehicle-miles on urban roads and streets.

Cumulative Travel changed by +0.4 percent.

Note: Annual travel has been adjusted to match the Highway Performance Monitoring System for 2003. While the adjustment to total travel was less than one percent, rural travel declined 5% and urban travel increased 4% because of this adjustment. The larger changes to rural and urban travel are primarily because of the expansion in urban boundaries reflected in the 2000 census. Travel estimates for 2004 and beyond will also reflect this adjustment.

Travel for the current month, the cumulative yearly total, as well as the moving 12-month total on all roads and streets is shown below.

Travel in Millions of Vehicle Miles
All Roads and Streets

Year

June

Year to Date

Moving 12-Month

1980

131,679

737,625

1,518,222

1981

135,545

751,927

1,535,158

1982

142,111

757,690

1,556,032

1983

146,738

787,177

1,621,968

1984

153,403

823,096

1,685,027

1985

158,703

850,976

1,744,650

1986

162,370

880,813

1,804,600

1987

167,826

928,892

1,886,319

1988

178,690

981,999

1,977,435

1989

184,094

1,024,710

2,068,297

1990

189,529

1,053,740

2,136,069

1991

193,467

1,055,250

2,149,011

1992

197,232

1,091,660

2,208,624

1993

199,414

1,116,525

2,272,018

1994

207,280

1,141,229

2,321,409

1995

211,370

1,188,287

2,404,645

1996

215,551

1,203,679

2,438,167

1997

222,254

1,245,655

2,524,178

1998

228,733

1,272,811

2,587,529

1999

235,970

1,293,581

2,646,133

2000

243,012

1,348,956

2,734,833

2001

243,693

1,365,387

2,763,356

2002

248,094

1,396,531

2,828,431

2003

252,048

1,403,234

2,862,211

2004

253,668

1,430,206

2,917,068

2005

257,622

1,435,716

2,928,720

Traffic Volume Trends is a monthly report based on hourly traffic count data.
These data, collected at approximately 4,000 continuous traffic counting
locations nationwide, are used to determine the percent change in traffic for
the current month compared to the same month in the previous year. This percent
change is applied to the travel for the same month of the previous year to
obtain an estimate of travel for the current month.

** System entries may not add to give "All Systems" total due to rounding for Page 2 to 8.